Spring bed-bottom



(No Model.)

' 0. S. & W. S. FOSTER.

SPRING BED BOTTOM.

No. 252,601. Patented Jan. 24,1882.

WITNESSES (0 XTVEN N. PETERS. PhoflrLiUlogrzphur. Washinglun. D. Q

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OSCAR S. FOSTER AND WILLIAM S. FOSTER, OF UTIOA, NEW YORK.

SPRING BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 252,601, dated January24, 1882.

Application filed October 22, 1881.

To all whom it may concern:

Be it known that we, OSCAR S. FOSTER and WILLIAM S. FOSTER, of Utica, inthe county ofOneida and StateofNew York,haveinvented certain new anduseful Improvements in Spring Bed-Bottoms; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being bad to the accompanying drawings,and to letters of reference marked thereon, which form a part of thisspecification.

Our invention relates to an improvement in spring bed-bottoms, theobject of the same being to provide a neat, strong, and durablebedbottom adapted by its peculiar construction to transmit the pressureapplied to any particular portion thereof to the remaining portion,which equalizes the pressure on the springs throughout the entirebottom, thereby preventing anyparticular portion of the bed-bottom fromsustaining the entire load.

WVith these ends in view our invention consists in certain details inconstruction and combinations of parts, as will bemore fully described,aud pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of ourimprovement, and Fig. 2 is an end view of the same.

A represents the longitudind slats, situated at suitable distances apartand secured together by the transverse braces B and the diagonal braceB, the latter extending wholly or partly across the slats, as desired.

0 are suitable wire springs secured to the upper surface of the slats Ain any desired manner, and connected together on top by the longitudinaland transverse links a a. The links a bind the springs on the same slattogether, while the transverse links to connect the springs of one slatto the opposite springs of the next slat. When thespringsO are thusconnected the outside of the outer row of the rectangular frame thusformed has no outer bearing, and if a weight should be applied to thecenter of the bed the springs at the sides and ends would incline inwardand allow the springs under the weight to receive all the pressure. Toovercome this defect we provide two or more semi-elliptical springs, 1),made of wood or any suitable material, and secure them cen- (No model.)

trally to the transverse braces B between the springs, with theirextreme outer ends projectingslightly beyond the outside rows ofsprings. To the extreme outer ends of these semi-elliptical springs Dthe side rails, E, are rigidly secured by mortise-and-tenon joint or inany other suitable manner. These side rails are about the same length asthe slats A, and when secured to the springs are adapted to restparallel to the outer side rows of springs, to which they are connectedby metallic loops c, which latter pass around the wire of the upper coilof the springs, and the two ends of the same are secured to the siderails by suitable rivets.

F are two flexible metallic straps connecting the ends of opposite siderails, and adapted, in conjunction with the said side rails, to attainthe object in view. These metallic straps are provided with looped ends(1, into which the ends of the side rails are secured by countersink orrivet afterthe straps have been passed through the upper coils of thesprings, substantially as shown in the drawings. When a weightis appliedto this improved construction of bed-bottom the pressure on thesemielliptical springs causes them to partly flatten out, which widensthe space between the side rails and prevents the springs at the side ofthe load from inclininginward. of the space between the side rails alsodraws theend straps taut, and consequently prevents the end springs frominclining inward.

We can, if desired, use four or more small springs instead of the twosemi-elliptic springs shown and 'describedand accomplish the sameresult. When these small semi-elliptic springs are employed they aresecured by one end to the slats or braces, while the opposite endextends outward and upward and is secured to the site rails in the samemanner as the large springs. n

A spring bed-bottom constructed as described is neat in appearance,durable, and compact in structure, and possesses numerous advantagesover a majority of bed-bottoms now.

in use.

It is evident that slight changes in the construction of the bed mightberesorted to without departing from the spirit ofour invention; and hencewe would have it understood that we do not limit ourselves to the exactconstruction of parts shown and described, but con- The widening siderourselves at liberty to make such changes as come within the spirit andscope of our invention.

Having fully described our invention, what We claim as new, and desireto secure by Letters Patent, is-- 1. In a spring bed-bottom, thecombination, with the longitudinal slats having springsse cured thereto,the said springs being secured together by suitable links, and siderails secured to the outside rows of springs by suit able metallicloops, of semi-elliptic springs rigidly secured to the side rails,substantially as set forth.

2. In a spring bed-bottom, the combination, with the longitudinal slatshaving springs secured thereto, the said springs being secured togetherby suitable links, side rails secured to the outside rows of springs bysuitable metallicloops, and metallic straps passing through 20 the topcoil of the end springs and secured to the side rails in any suitablemanner, of semielliptie springs the ends of which are rigidly secured tothe side rails, substantially as set forth. 3. The combination, with thelongitudinal slats A, braces B, springs O, and metallic straps F, of thesemi-elliptic springs D, secured to the braces B, and connected at theiropposite ends to the side rails, substantially as set forth. 0

In testimony that we claim the foregoing we have hereunto set our handsand seals.

OSCAR SMITH FOSTER. WILLIAM SMITH rosrna.

\Vitnesses:

HENRY A. DOOLITTLE, M. L. HUNGERFORD.

